func reduceReadQuorumErrs(ctx context.Context, errs []error, ignoredErrs []error, readQuorum int) (maxErr error) {
	return reduceQuorumErrs(ctx, errs, ignoredErrs, readQuorum, errErasureReadQuorum)
}

// reduceWriteQuorumErrs behaves like reduceErrs but only for returning
// values of maximally occurring errors validated against writeQuorum.

	Context                  context.Context
	Logger                   logger.Interface
	NowFunc                  func() time.Time
	CreateBatchSize          int
}

// Open initialize db session based on dialector
func Open(dialector Dialector, opts ...Option) (db *DB, err error) {
	config := &Config{}

	sort.Slice(opts, func(i, j int) bool {
		_, isConfig := opts[i].(*Config)
		_, isConfig2 := opts[j].(*Config)

}

// IsDateNull returns true if date field is null
func (t Transition) IsDateNull() bool {
	return t.Date.IsZero()
}

// IsNull returns true if both date and days fields are null
func (t Transition) IsNull() bool {
	return t.StorageClass == ""
}

// NextDue returns upcoming transition date for obj and true if applicable,
// returns false otherwise.
func (t Transition) NextDue(obj ObjectOpts) (time.Time, bool) {

func (db *DB) Create(value interface{}) (tx *DB) {
	if db.CreateBatchSize > 0 {
		return db.CreateInBatches(value, db.CreateBatchSize)
	}

	tx = db.getInstance()
	tx.Statement.Dest = value
	return tx.callbacks.Create().Execute(tx)
}

// CreateInBatches inserts value in batches of batchSize
func (db *DB) CreateInBatches(value interface{}, batchSize int) (tx *DB) {

}

func (e Error) Error() string {
	if e.Cause == nil {
		return e.Err
	}
	return fmt.Sprintf("%s: %v", e.Err, e.Cause)
}

func errKeyCreationFailed(err error) Error {
	return Error{
		Code:    http.StatusInternalServerError,
		APICode: "kms:KeyCreationFailed",
		Err:     "failed to create KMS key",
		Cause:   err,
	}
}

func errKeyDeletionFailed(err error) Error {

type testDialector struct{}

func (d testDialector) Name() string                                   { return "test" }
func (d testDialector) Initialize(*gorm.DB) error                      { return nil }
func (d testDialector) Migrator(db *gorm.DB) gorm.Migrator             { return nil }
func (d testDialector) DataTypeOf(*schema.Field) string                { return "" }

	cause      error
}

func (err *s3Error) Cause() error {
	return err.cause
}

func (err *s3Error) ErrorCode() string {
	return err.code
}

func (err *s3Error) ErrorMessage() string {
	return err.message
}

func (err *s3Error) HTTPStatusCode() int {
	return err.statusCode
}

func (err *s3Error) Error() string {
	return err.message
}

func errParquetParsingError(err error) *s3Error {

// when the request is finished to provide accurate data
func (lrw *ResponseRecorder) TTFB() time.Duration {
	if lrw.ttfbBody != 0 {
		return lrw.ttfbBody
	}
	return lrw.ttfbHeader
}

// NewResponseRecorder - returns a wrapped response writer to trap
// http status codes for auditing purposes.
func NewResponseRecorder(w http.ResponseWriter) *ResponseRecorder {
	rf, _ := w.(io.ReaderFrom)

}

// getMutex will lock the mutex.
// Call the returned function to unlock.
func (l *localLocker) getMutex() func() {
	l.waitMutex.Add(1)
	l.mutex.Lock()
	l.waitMutex.Add(-1)
	return l.mutex.Unlock
}

func (l *localLocker) String() string {
	return globalEndpoints.Localhost()
}

func (l *localLocker) canTakeLock(resources ...string) bool {
	for _, resource := range resources {

// and the S3 multipart API.
func IsMultiPart(metadata map[string]string) bool {
	if _, ok := metadata[MetaMultipart]; ok {
		return true
	}
	return false
}

// RemoveSensitiveEntries removes confidential encryption
// information - e.g. the SSE-C key - from the metadata map.
// It has the same semantics as RemoveSensitiveHeaders.